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Primary umbilical endometriosis masquerading as strangulated umbilical hernia: a diagnostic pitfall.

Primary umbilical endometriosis (Villar's nodule) is a rare entity, representing 0.5%-1% of all endometriosis cases. We report a 37-year-old multiparous woman presenting with a 7-day history of umbilical pain, swelling, …

Published: June 19, 2026, midnight
Primary Cutaneous Endometriosis of the Umbilicus: A Diagnostic Challenge.

Umbilical endometriosis, or Villar's nodule, is a rare form of cutaneous endometriosis in which ectopic endometrial tissue involves the umbilical skin. It may occur without any history of abdominal or …

Published: May 21, 2026, midnight
Primary Periumbilical Endometriosis Mimicking Umbilical Hernia in a 37-Year-Old Woman: A Report of a Rare Case.

This case report describes a rare presentation of primary periumbilical endometriosis, also known as Villar's nodule, highlighting the diagnostic difficulties and the importance of maintaining clinical suspicion. A 37‑year‑old woman …

Published: May 9, 2026, midnight
A Case of Spontaneous Umbilical Endometriosis.

Umbilical endometriosis, also known as Villar's nodule, is an atypical manifestation of endometriosis. We present a rare case of spontaneous Villar's nodule in a young, nulliparous woman with no history …

Published: April 22, 2026, midnight
Double Trouble: A Rare Clinical Presentation of Bladder and Umbilical Endometriosis.

Endometriosis is a common condition among women where tissue resembling the uterine lining grows outside the uterus. This misplaced tissue can develop in several areas, including the peritoneum, pouch of …

Published: Nov. 30, 2025, midnight
Primary Umbilical Endometriosis (Villar's Nodule): A Case Report.

Primary umbilical endometriosis is a rare condition in which there is endometrial glands and stroma in the umbilicus. Primary umbilical endometriosis is also called villar's nodule. This condition is a …

Published: Dec. 11, 2024, midnight
Umbilical nodule, a rare presentation of primary cutaneous endometriosis: Case report and literature review.

Umbilical endometriosis or Villar's nodule is defined as the presence of endometrial tissue within the umbilicus and represent 0.5%-1% cases of endometriosis ectopia. It is classified as primary or secondary …

Published: Sept. 12, 2024, midnight
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